CVE-2026-43134
highIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ This adds a check for…
Vendor / product: Linux — linux kernel
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ This adds a check for encryption key size upon receiving L2CAP_LE_CONN_REQ which is required by L2CAP/LE/CFC/BV-15-C which expects L2CAP_CR_LE_BAD_KEY_SIZE.
CVSS
8.1
8.1 (CVSS v3.1)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Severity source: NVD CVSS v3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
Timeline (UTC)
Published: 2026-05-06 12:16
Modified: 2026-11-11 21:10
NVD status: Modified
Last synced 5 hours ago
Verified against the source API 2026-11-11 21:11 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
linux / linux_kernel ≥3.14 <5.10.252, ≥5.11 <5.15.202, ≥5.16 <6.1.165, ≥6.2 <6.6.128, ≥6.7 <6.12.75, ≥6.13 <6.18.16
Weakness classification (CWE)
NVD-CWE-noinfo CWE-326
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://git.kernel.org/stable/c/138d7eca445ef37a0333425d269ee59900ca1104
Patch / mitigation: https://git.kernel.org/stable/c/335071c0c3637064ec250481f589075db44fe4e6
Patch / mitigation: https://git.kernel.org/stable/c/481ea39b342c347b6ac029f3d418486280be4e45
Patch / mitigation: https://git.kernel.org/stable/c/8dd43f9a9323f9c01bc8246da8d81a4c783c9e97
Patch / mitigation: https://git.kernel.org/stable/c/9118601ff90b79e8df3c0c98f48ae00c1b02ecef
Patch / mitigation: https://git.kernel.org/stable/c/96581749c7c14fbec32c35728520867929600041
Patch / mitigation: https://git.kernel.org/stable/c/ec91078e132179b04e0c3906b599816c056ceaad
Patch / mitigation: https://git.kernel.org/stable/c/fa6ad76fa8623c0a50d529cd5726fa5d819a3be4
References
- https://git.kernel.org/stable/c/138d7eca445ef37a0333425d269ee59900ca1104 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/335071c0c3637064ec250481f589075db44fe4e6 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/481ea39b342c347b6ac029f3d418486280be4e45 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/8dd43f9a9323f9c01bc8246da8d81a4c783c9e97 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/9118601ff90b79e8df3c0c98f48ae00c1b02ecef 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/96581749c7c14fbec32c35728520867929600041 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/ec91078e132179b04e0c3906b599816c056ceaad 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/fa6ad76fa8623c0a50d529cd5726fa5d819a3be4 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Data sources
NVD CVE API 2.0 — fetched 2026-11-11 21:11 UTC · record ↗